About Waterfox

Waterfox is a high
performance browser based on the Mozilla platform. Made
specifically for 64-Bit systems, Waterfox has one thing in
mind: speed.

What is Waterfox?

Waterfox started back in March 2011 when I
was just 16 years old. I had a fascination for
the web and wanted to help expand on the ideals
of what Mozilla had for a free and open web. So
I made Waterfox, a 64-Bit variant of
Firefox.

Do all my add-ons and plugins work?

Your add-ons/extensions work on any version
of Firefox, on any platform! That means they
all work with Waterfox. On the other hand, only
64-Bit plugins work with Waterfox and as of now
those are: Adobe Flash, Oracle Java and
Microsoft Silverlight.

Where do I report bugs?

If you find any bugs that you think are
related to Waterfox only, report them in the
support section. If you think it's a bug
relating to Firefox, then reproduce it on there
and file a bug report to Mozilla.

What makes Waterfox different?

Waterfox is built with Intel's C++ compiler. This enables us to make the fastest possible web browser
without changing too much of the core code. Then on top of that we change some compiler flags to really bring out the best performance on all Windows systems.
Waterfox 33.0 for Mac has support for MP4 files, of which Firefox used to not support.

Plug It In

Adobe Flash Player

The Adobe Flash Player is software for viewing
animations and movies using computer programs such as a
web browser. Flash Player is a widely distributed
proprietary multimedia and application player created
by Macromedia and now developed and distributed by
Adobe after its acquisition.

Oracle Java

Java is a widely used platform used to deploy
portable applications for general use. In practical
terms, Java consists of a virtual machine, which must
be used to run Java programs, together with a set of
libraries needed to allow the use of file systems,
networks, graphical interfaces, and so on, from within
those programs.

Microsoft Silverlight

Microsoft Silverlight is an application framework
for writing and running rich Internet applications,
with features and purposes similar to those of Adobe
Flash. While early versions of Silverlight focused on
streaming media, current versions support multimedia,
graphics and animation.

Help & Forums

Join the conversation!

Waterfox now has a place for discussion. Please join the official Waterfox subreddit for any queries, support or just general discussion!

Fixes in 36.0.4 (Firefox)

Fixes in 36.0.1 (Waterfox)

Fixed a crash in the Mozilla code base that would cause TheGuardian.com to crash

Fixes in 36.0.1 (Firefox)

Disable the usage of the ANY DNS query type

Fixed a startup crash with EMET

Hello may become inactive until restart

Print preferences may not be preserved

Hello contact tabs may not be visible

Accept hostnames that include an underscore character ("_&quot

WebGL may use significant memory with Canvas2d

Option -remote has been restored

Fix a top crash

What’s new in 36.0 (Waterfox)

Support for HTML5 Gamepad standard

Much improved memory allocation and leak plugs

Now using Windows 8.1 SDK, added support for DirectX11 rendering if supporting hardware is present

Updated International Components for Unicode from 54.1 to 55 Milestone 1

What’s new in 36.0 (Firefox)

Support for the full HTTP/2 protocol. HTTP/2 enables a faster, more scalable, and more responsive web.

-remote option removed

No longer accept insecure RC4 ciphers whenever possible

Phasing out Certificates with 1024-bit RSA Keys

Shut down hangs will now show the crash reporter before exiting the program

Support for the ECMAScript 6 Symbol data type added

unicode-range CSS descriptor implemented

object-fit and object-position implemented. Defines how and where the content of a replaced element is displayed

isolation CSS property implemented. Create a new stacking context to isolate groups of boxes to control which blend together

CSS3 will-change property implemented. Hints the browser of elements that will be modified. The browser will perform some performance optimization for these

Changed JavaScript ’const’ semantics to conform better to the ES6 specification. The const declaration is now block-scoped and requires an initializer. It also can not be redeclared anymore

Improved ES6 generators for better performance

Eval sources now appear in the Debugger Debug JavaScript code that is evaluated dynamically, either as a string passed to eval() or as a string passed to the Function constructor

DOM Promises inspection

Inspector: More paste options in markup view

CSS gradients work on premultiplied colors

Fix some unexpected logout from Facebook or Google after restart

Various security fixes

Known Issue

Any users on Waterfox 35.0 and 35.0.1 will not be receiving the automatic update as it needs to be signed digitally and there are some issues signing current update files. This should be resolved in the coming week. You can update manually if you want to upgrade to 36.0.

How do I get this update?

It should be available immediately and can be applied by clicking the Menu Icon > ? > About Waterfox or